| Title: | Pioneering observation of atmospheric volatile organic compounds in Hangzhou in eastern China and implications for upcoming 2022 Asian Games |
| Author(s): | Li B; Ho SSH; Li X; Guo L; Feng R; Fang X; |
| Address: | "College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China. Division of Atmospheric Sciences, Desert Research Institute, Reno, Nevada, 89512, USA. College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China; Center for Global Change Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. Electronic address: fangxk@mit.edu" |
| DOI: | 10.1016/j.jes.2021.12.029 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "Understanding the emission sources of volatile organic compounds (VOCs) is critical for air pollution mitigation. Continuous measurements of atmospheric VOCs were conducted from January to February in Hangzhou in 2021. The average measured concentration of total VOCs (TVOCs) was 38.2 +/- 20.9 ppb, > 42% lower than that reported by previous studies at the urban center in Hangzhou. The VOC concentrations and proportions were similar between weekdays and weekends. During the long holidays of the Spring Festival in China, the concentrations of TVOCs were approximately 50% lower than those during the regular days, but their profiles showed no significant difference (p > 0.05). Further, we deduced that aromatics and alkenes were the most crucial chemicals promoting the formation of O(3) and secondary organic aerosol (SOA) in Hangzhou. According to interspecies correlations, combustion processes and solvent use were inferred as major VOC emission sources. This study provides implications for air quality improvements before and during the upcoming Asian Games that will be hosted in Hangzhou in 2022" |
| Keywords: | Aerosols/analysis *Air Pollutants/analysis Alkenes/analysis China Environmental Monitoring *Ozone/analysis Solvents *Volatile Organic Compounds/analysis 2022 Asian game Air quality improvements Atmospheric observation Eastern China VOCs; |
| Notes: | "MedlineLi, Bowei Ho, Steven Sai Hang Li, Xinhe Guo, Liya Feng, Rui Fang, Xuekun eng Netherlands 2022/10/02 J Environ Sci (China). 2023 Feb; 124:723-734. doi: 10.1016/j.jes.2021.12.029. Epub 2022 Jan 4" |
